| (19) |
 |
|
(11) |
EP 0 296 431 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
05.12.1990 Bulletin 1990/49 |
| (43) |
Date of publication A2: |
|
28.12.1988 Bulletin 1988/52 |
| (22) |
Date of filing: 10.06.1988 |
|
|
| (84) |
Designated Contracting States: |
|
DE ES FR GB IT |
| (30) |
Priority: |
25.06.1987 JP 158682/87
09.11.1987 JP 282342/87
|
| (71) |
Applicant: Kao Corporation |
|
Chuo-ku
Tokyo (JP) |
|
| (72) |
Inventors: |
|
- Kita, Kazuo
Wakayama-shi
Wakayama-ken (JP)
- Morimi, Etsuko
Wakayama-shi
Wakayama-ken (JP)
- Hamai, Toshimasa
Kaiso-gun
Wakayama-ken (JP)
|
| (74) |
Representative: Wächtershäuser, Günter, Prof. Dr. |
|
Patentanwalt,
Tal 29
80331 München
80331 München (DE) |
|
| |
|
| (54) |
Use of a branched carboxylic acid as additive for an alkaline detergent composition
for cleaning metallic articles in an electrolytic cleaning operation |
(57) An additive for an alkaline detergent comprising a branched carboxylic acid represented
by the following formula (I):
RCOOM (I)
in which R represents a branched aliphatic hydrocarbon group having a branched chain
of a C₁₋₁₄ carbon atom content, with a total carbon atom content of 8 - 24, and M
represents a hydrogen an atom, an alkali metal, an alkali earth metal, an aliphatic
amine having a C₁₋₄ carbon atom content, ammonia, or alkanolamine. The additive is
useful as a component of an alkali-type detergent, and, when added to an alkali-type
detergent, provides excellent detergency, promotes durability of the detergent, improves
the electro-flow characteristics and detergent liquid conditions during electrolytic
cleaning, and reduces the amount of foam.